20478076043 has 2 divisors, whose sum is σ = 20478076044. Its totient is φ = 20478076042.

The previous prime is 20478076033. The next prime is 20478076079. The reversal of 20478076043 is 34067087402.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20478076043 - 2⁴ = 20478076027 is a prime.

It is not a weakly prime, because it can be changed into another prime (20478076033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10239038021 + 10239038022.

It is an arithmetic number, because the mean of its divisors is an integer number (10239038022).

Almost surely, 2^20478076043 is an apocalyptic number.

20478076043 is a deficient number, since it is larger than the sum of its proper divisors (1).

20478076043 is an equidigital number, since it uses as much as digits as its factorization.

20478076043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 225792, while the sum is 41.

The spelling of 20478076043 in words is "twenty billion, four hundred seventy-eight million, seventy-six thousand, forty-three".